// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_BROWSER_DOM_STORAGE_SESSION_STORAGE_NAMESPACE_IMPL_H_
#define CONTENT_BROWSER_DOM_STORAGE_SESSION_STORAGE_NAMESPACE_IMPL_H_

#include <stdint.h>

#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "content/common/content_export.h"
#include "content/public/browser/session_storage_namespace.h"

namespace content {

class DOMStorageContextWrapper;
class DOMStorageSession;

class SessionStorageNamespaceImpl
    : NON_EXPORTED_BASE(public SessionStorageNamespace) {
public:
    // Constructs a |SessionStorageNamespaceImpl| and allocates new IDs for it.
    //
    // The CONTENT_EXPORT allows TestRenderViewHost to instantiate these.
    CONTENT_EXPORT explicit SessionStorageNamespaceImpl(
        DOMStorageContextWrapper* context);

    // Constructs a |SessionStorageNamespaceImpl| by cloning
    // |namespace_to_clone|. Allocates new IDs for it.
    SessionStorageNamespaceImpl(DOMStorageContextWrapper* context,
        int64_t namepace_id_to_clone);

    // Constructs a |SessionStorageNamespaceImpl| and assigns |persistent_id|
    // to it. Allocates a new non-persistent ID.
    SessionStorageNamespaceImpl(DOMStorageContextWrapper* context,
        const std::string& persistent_id);

    // SessionStorageNamespace implementation.
    int64_t id() const override;
    const std::string& persistent_id() const override;
    void SetShouldPersist(bool should_persist) override;
    bool should_persist() const override;

    SessionStorageNamespaceImpl* Clone();
    bool IsFromContext(DOMStorageContextWrapper* context);

private:
    explicit SessionStorageNamespaceImpl(DOMStorageSession* clone);
    ~SessionStorageNamespaceImpl() override;

    scoped_refptr<DOMStorageSession> session_;

    DISALLOW_COPY_AND_ASSIGN(SessionStorageNamespaceImpl);
};

} // namespace content

#endif // CONTENT_BROWSER_DOM_STORAGE_SESSION_STORAGE_NAMESPACE_IMPL_H_
